252 MINNESOTA BOTANICAL STUDIES. 



73. Peltigera horizontalis (L.) Hoffm. 



On earth, frequent or common. Grand Portage island, June 

 19, 1897, no. 30 and June 23, 1897, no. 121. Gunflint, June 

 30, 1897, no. 247, and July i, 1897, nos. 338 and 360. Mis- 

 quah hills, July 3, 1897, r^o- 44i- Tofte, July 12, 1897, nos. 

 630 and 631. Beaver Bay, July 14, 1897, no. 723. Palisades, 

 July 15, 1897, no. 761. Snowbank lake area, July 24, 1897, nos. 

 917 and 918. Part of the plants placed here agree somewhat with 

 those reported elsewhere for Iowa and Minnesota as P. ptilverti- 

 lenta (Tayl.) Nyl., but though the sterile forms previously seen 

 differ considerably from the fertile ones herein reported per- 

 haps all must eventually be placed here. The sterile forms, 

 occasionally light colored below, are crisped and broken prob- 

 ably from unfavorable conditions which prevented their fruiting. 



Not previously reported from Minnesota. 



74. Peltigera polydactyla (Neck.) Hoffm. 



On earth, common. Spores reaching no mic. Grand Port- 

 age island, June 23, 1897, nos. 140 and 144. Gunflint, July i, 

 1897, no. 336. Misquah hills, July 5, 1897, no. 536. Beaver 

 Bay, July 14, 1897, no 726. Snowbank lake area, July 24, 

 1897, no. 929, and July 27, 1897, no. 971. 



75. Peltigera canina (L.) Hoffm. var. spuria Ach. 



On earth, frequent or common. Grand Portage island, 

 June 19, 1897, no. 29. Grand Portage (Mt. Josephine), June 

 21, 1897, no. 54. Gunflint, July i, 1897, no. 323. Beaver 

 Bay, July 13, 1897, no. 663. Palisades, July 13, 1897, no. 

 760. Snowbank lake area, July 24, 1897, no. 943- 



76. Peltigera canina (L.) Hoffm. var sorediata Schaer. 



On earth, frequent. Grand Portage (Mt. Josephine), June 

 23, 1897 no. ii8a. Gunflint, July i, 1897, no. 343. Mis- 

 quah hills, July 5, 1897, no. 535. Tofte (Carlton peak), July 

 10, 1897, no. 589. Beaver Bay, July 13, 1897, no. 693. 

 Snowbank lake area, July 24, 1897, no. 902. Ely, July 28, 

 1897, no. 976. 



77. Solorina saccata (L.) Ach. 



On earth, rare. Grand Portage island, June 24, 1897, no. 

 179. Not previously reported from Minnesota and new to the 

 interior of North America. 



78. Pannaria languinosa (Ach.) Koerb. 



On rocks, common. Grand Portage island, June 17, 1897, 



